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 ###Instrução: Qual Secretário-Geral que tem um Vice-Presidente chamado charlotte saes?
 ###Tabelas: CREATE TABLE head_to_head (head_to_head_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Miles [One Way] INT, Home Result VARCHAR, Fans Brought VARCHAR, Away Result VARCHAR, Fans Took VARCHAR, Points Gained INT) CREATE TABLE members_of_the_board (members_of_the_board_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, President VARCHAR, Vice President VARCHAR, Gen.-Secretary VARCHAR, Treasurer VARCHAR) CREATE TABLE 2008___race_‘a’_tt_final_standings (2008___race_‘a’_tt_final_standings_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Rider VARCHAR, Team VARCHAR, Speed VARCHAR, Time VARCHAR) CREATE TABLE tac_v8_supercar_showdown (tac_v8_supercar_showdown_id AUTO_INCREMENT PRIMARY KEY, Driver VARCHAR, Race 1 VARCHAR, Race 2 VARCHAR, Race 3 VARCHAR, Race 4 VARCHAR) CREATE TABLE financial_performance (financial_performance_id AUTO_INCREMENT PRIMARY KEY, Year ended VARCHAR, Revenue (S$m) VARCHAR, Expenditure (S$m) VARCHAR, Operating profit (S$m) VARCHAR, Profit before taxation (S$m) VARCHAR, Profit attributable to equity holders (S$m) VARCHAR, EPS after tax – diluted (cents) VARCHAR)  
SELECT Gen.-Secretary FROM members_of_the_board WHERE Vice President = charlotte saes